期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2017
卷号：6
期号：6
页码：11780
DOI：10.15680/IJIRSET.2017.0606153
出版社：S&S Publications
摘要：Watershed is an area, which catches the water from precipitation and then is drained by a river and itstributaries. It is a “resource region” where the ecosystem is closely interconnected around a basic resource - water. Thewatershed is therefore an ideal management unit. The watershed provides a powerful study and management unit,which integrates ecological, geographical, geological, and cultural aspects of the land. The watershed is also a usefulconcept for integrating science with historical, cultural, economic, and political issues. Geomorphology is the scienceof evolution of landforms in terms of its lithology, structure, basin geometry and other morphometric factors.Landforms on the earth surface are expensive to map or monitor. Remote Sensing observations from space platformsprovide a synoptic view of terrain on images. Satellite multispectral data have an advantage in that the image data invarious bands can be subjected to digital enhancement techniques for highlighting contrasts in objects for improvingimage interpretability. Landforms are interpreted on the basis of interpretation element keys namely such as- tone,texture, size, shape, color etc. and extract the specific information from the false color composites LISS-IV sensorimages and SOI topographic sheet of the region. Geomorphological units are classified on the basis differentialprocesses. In the study area, mainly Pediplain Moderately (Weathered), Pediplain Shallow (Weathered), Pediment,Mesa, Dyke Ridge, Denudational Hill and Residual Hill are predominant landforms. These above geomorphic units aremapped using IRS-ID LISS-IV satellite imagery using visual interpretation technique along with field check. RemoteSensing and GIS offers detecting, analyzing and time cost effective way to fulfill these goals. In this study, RemoteSensing and GIS, tools and techniques are used to identify landform, geomorphic units and area mapping becausegeomorphology is the base of watershed management. The study area is a small watershed in Telangana state namelyPeddavagu mini watershed. The study area is situated between 77° 54’ to 78° 26’east longitudes and 17° 01’ to 17° 22’north latitudes and situated in the southwestern part of Telangana state. In this study area 8 mandals are covering. Thestudy area has a population of more than 400000, which accounts for 0.27% of the total population of the TelanganaState and households are 97,036. The climate of the study is characterized by a hot summer and is generally dry exceptduring the southwest Monsoon season. The cold weather comes towards the end of November when the temperaturebegins to fall rapidly.
